I once flagged two link-only answers, but since we're not [StackOverflow](https://meta.stackoverflow.com/questions/251006/flagging-link-only-answers), in terms of size/#users, I think we should rather strive to comment/edit the posts, so as to make them **not** link-only answers. This may seem odd, since there are questions in which people actually **want** a reference on a specific subject, like in these questions:

- https://datascience.stackexchange.com/questions/155/publicly-available-datasets;
- https://datascience.stackexchange.com/questions/266/what-are-some-easy-to-learn-machine-learning-applications;
- https://datascience.stackexchange.com/questions/422/publicly-available-social-network-datasets-apis.

But I guess whenever the request is not for dataset/API/tool sources, and actually for explanations/examples on some topic, as these posts:

- https://datascience.stackexchange.com/questions/134/can-map-reduce-algorithms-written-for-mongodb-be-ported-to-hadoop-later/;
- https://datascience.stackexchange.com/questions/189/open-source-solver-for-large-mixed-integer-programming-task/;
- https://datascience.stackexchange.com/questions/430/looking-for-example-infrastructure-stacks-workflows-pipelines;
- https://datascience.stackexchange.com/questions/406/how-can-i-predict-traffic-based-on-previous-time-series-data;

the answers should praise this [*rule of thumb*](https://meta.stackexchange.com/questions/8231/are-answers-that-just-contain-links-elsewhere-really-good-answers) discussed on meta.stackexchange. So, the idea is simply to either comment link-only answers, in order to ask the OP to improve their question, or simply suggest an edit.

Now, to leave a question here: what should actually be done for link-only answers? Are these suggestions enough/reasonable, or should we flag them anyway? Any further suggestions are surely much welcome.